Cursor not showing up when clicking into comment box

[rzhao271]

Testing #2687

When replying to a comment, I tried clicking in the comment box, but the cursor didn't show up.
I kept thinking that meant the textarea was readonly. I didn't realize that typing in it would start writing a comment.

Version: 1.56.0-insider (user setup)
Commit: 85f8ebf1687661c45fe2633bdd7f640164a20cc2
Date: 2021-05-04T08:04:43.323Z
Electron: 12.0.4
Chrome: 89.0.4389.114
Node.js: 14.16.0
V8: 8.9.255.24-electron.0
OS: Windows_NT x64 10.0.19042

[RMacfarlane]

Upstream issue: microsoft/vscode#122563

[alexr00]

closing in favor of the upstream issue.